While you wouldn't be able to transfer existing Roth IRA assets into the Solo 401k, you could utilize some of the other benefits the plan offers over an IRA.

this is running through all real estate asset class's  when I sell my new construction first thing I want to know is where is the financing coming from and POF of down stroke.. 

If using zero down finance, you have no out of pocket and you can have your tenants pay the monthly for the solar system (with a caveat that if they use excess power from the utility they are liable for that).In that scenario, you've added value to your home, your roof is an income producing asset instead of a liability and you are having that paid for by other people.

I am also signing with Anderson Business Consultants on Monday to kick off the Entity formations for my asset protection strategy.....  

What would be the best use of this asset, to fund a project that my daughter and I could do together.

@Nick Vollrath once you identify the property, then talk to your lawyer or get a Asset Protection Lawyer to then set up your holding company and trust.

Talk to investment agents to have them send you deals, start analyzing the deals doing your own number, talk to your CPA about your tax's and your Asset Protection Lawyer to get you set up to limit liability and exposure.

Hold it long enough to refinance based on a fully occupied worth of NOI and I bet you’ll pull out more than the total cost and still have a cash flowing asset.

I completely agree that people are going to be the greatest asset.

In the coming years, the way people hold and transfer assets are going to change dramatically.